Transparent book



Jan. 22, 1935. CORNISH 1,988,998

TRANSPARENT BOOK Fi1ed'Sept.'9, 1933 amnion 1 1 gray? Jziriiz fiPatented Jan. 22, 1935 UNITED STATES PATENT OFFIC TRANSPARENT BOOK GroveH. Cornish, Manhasset, N..Y. Application September 9, 1933, Serial No.688,850 4 Claims. (01. 129-20) This invention relates to books and hasspecial reference to a filing book for letters and the like.

One important object of the invention is to provide a novel form of bookwherein a number of transparent pockets are bound together so thatletters and the like may be slipped into the pockets and be legiblewithout removal from the pockets.

'A second important object of the invention is to provide a book of thischaracter wherein the bodies of the pockets are all formed from a singlelong strip of material folded back and forth to produce a series ofplications having the folds at one side of the plications bound togetherand the folds at the remaining side of the plications forming pocketsides.

A third important object of the invention is to provide a novelarrangement of the folds in the plications of such pockets wherebycertain of the plications at the bound positions will constitutereinforcing means for the main plications forming the pockets.

With-the above and other objects in view, the invention consists ingeneral of certain novel details of construction and combination ofparts hereinafter fully described, illustrated in the acand specificallyclaimed. 9

In the accompanying drawing like characters of 7 reference indicate likeparts in the several views, and:

,Figure 1 is a perspective view of a completed book constructed inaccordance with this invention, certain parts being broken away todisclose constructional details.

Figure 2 is a perspective view of the leaves or pockets before binding.

Figure 3 is an enlarged view showing the ends of certain of the pockets.

, Figure 4 is an enlarged section on the line 44 of Figure 1.

Figure 5, is an enlarged section on the line 5-5 of Figure 2.

Figure 6 is a perspective view of one of the strips used for closing thebottoms of the pockets.

In the drawing there is shown a series of pockets 10. These pockets areall formed from a single long strip of transparent material. This stripis doubled back and forth in a series of plications 11 of uniform widthand the free edge 12 of each plication forms the free edge of arespective pocket. The remaining edge of each plication is redoubled asat 13 to form additional short plications in the form of return folddouble loop portions that lie between the pockets. Thus the strip isfolded-to form alternate long and short plications with the longplications all of uniform width and the short plications also all ofuniform width. The short plications are at what may be termed thebinding edges of the pockets and, being positioned between the pocketsreinforce these binding edges.

A cover 14 is arranged over the group of pockets thus formed and thecover and group of pockets are held together by standard wire stitching15 which'is covered and concealed by'a binder strip 16. The stitchingpasses through the binding edges of the long plications and also throughthe short plications sothat the parts are firmly bound together.

In order to close the bottom of each pocket a strip 17, gummed on bothsides with a suitable adhesive, is inserted between the front and backwall of each pocket and there held by the adhesive.

There has thus been provided 'a simple and eflicient device of the kinddescribed and for the purpose specified. I

It is obvious that changes may be made in the form and construction ofthe invention without departing from the material principles involved.It is not, therefore, desired to confine the invention to the exact formherein shown and described but it is desired to include all such as comewithin the scope claimed.

What is claimed, is:-

1. A book including a long single strip of transparent material foldedtransverse its length in opposite directions to form alternate wide andnarrow plications, said wide plications being all of the same width andthe narrow plications being also all of the same width, and stitchingextending through the narrow plications and the adjacent edge portionsof the wide plications, the

narrow plications including return fold double 2. A book including along single strip of transparent material folded transverse its lengthin alternate directions to form a series of relatively wide and narrowplications, means to bind the narrow plications and adjacent edges ofthe wide plications together, the wide plications forming pockets andthe narrow plications at the bound edge having return-fold double loopportions between the pockets to reinforce the bound edges of theplications.

3. A book including a long single strip of transparent material foldedtransverse its length in altematedirections to form a series ofrelatively wide and narrow plications, means to bind the narrowplieations and adjacent edges of the wide plications together, the wideplications forming the free edges of pockets, means to close the bottomsof said pockets, and. the narrow plications at the bound edge havingreturn fold double loop -portions between the pockets to reinforce thebound edges of the plications.

4. A book including along single strip of transparent material foldedtransverse its length in alternate directions to form a series ofrelatively wide and narrow piications, means to bind the 1,oss,9es

back walls of a. pocket and adhesively held to saidwalls, and the narrowplications at the bound edge having return fold double 100p portionsbetween the pockets to reinforce the bound edges of the plications.

GROVE H. CORNISH.

